1 2 in Drive Impact Universal Joint Socket, Black Oxide no checkout so the tape can be so the tape can be wound wet and easily cleaned Wide blade with easy to read markings for more accurate measurements High visibility color makes it easy to find on the job site Rubber grip for comfort Cam action design of male half connector pulls the two halves together Connector covers are molded form a special heat and cold resistant material Covers have no metal liner to rust or corrode Metal parts are precision machined with heavy specially shaped brass extrusion Tight tolerances for snug fit on fastener Used wherever powered drive tools are used to install or remove fasteners Designed to withstand the high torque and force associated with impact tools in repetitive application Features two through holes and a groove to accept a Proto Retaining Ring or pin and O ring to help secure the socket to the drive tool anvil Position at appropriate angle to turn fasteners where obstructions prevent a straight application